Use Of Pyroelectric Detectors In Horizon Sensors

Pyroelectric detectors appear to be an attractive alternative to the conventional immersed bolometers which are used in horizon sensors for spinning satellites. The noise of the detector decreases with frequency thereby offering very good signal-to-noise ratio for a fast-spinning satellite. In addit...

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Bibliographic Details
Published in:Optical Engineering 1979-12, Vol.18 (6), p.186634-186634
Main Authors: Jain, Y. K, Kalakrishnan, B
Format: Article
Language:English
Online Access:Get full text
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Summary:Pyroelectric detectors appear to be an attractive alternative to the conventional immersed bolometers which are used in horizon sensors for spinning satellites. The noise of the detector decreases with frequency thereby offering very good signal-to-noise ratio for a fast-spinning satellite. In addition, the increase of responsivity at low frequencies again provides better signal-to-noise ratio than could be achieved with immersed thermistor bolometers:
ISSN:0091-3286
1560-2303
DOI:10.1117/12.7972446